Fitting for sliding / tilting window

Abstract

A fitting (3) for a sliding / tilting window or door for moving a sash (2) between a closed position and a parking position has a latching device (12) with latching cams (15) that can be fitted in different orientations. The latching cam (15) has four ramps (16, 17; 26, 27) facing away from one another and having different angles of inclination. In this way, the required latching force can be easily set.

Description

[0001] The present invention relates to an accessory for a sliding / tilting window or door for moving a window sash relative to a frame between a closed position and a parked position, having a control linkage that is pivotable and displaceable relative to a track, having a locking device operable during the relative movement of the track relative to the control linkage, having a locking element of the locking device that is elastically biased on the track, and a locking cam disposed in the track.

[0002] This type of fitting is often used on sliding / tilting windows to prevent unwanted folding of the window sash, such as due to airflow. When the window sash is released from the frame, the locking cam of the locking device is moved by the locking element. However, this movement should be designed to be as smooth as possible to comfortably move the window sash to its released sliding or tilted position. The window sash should, however, be securely held in, for example, the tilted position. The force required by the locking device to securely hold the window sash depends on the weight and height of the window sash.

[0003] WP 2019 / 063474 A1 discloses a fitting that allows a window sash to be easily closed from the parked position. For this purpose, the fitting has a bypass element that deflects the spring element portion of the locking device to reduce or eliminate the locking provided for the tilted position during the closing movement of the fitting.

[0004] However, known fittings require additional components for assembly along with bypass elements. Furthermore, these fittings cannot accommodate different window sash weights or desired locking forces.

[0005] One object of the present invention is to improve the above-mentioned type of accessory so that its structure is particularly simple and can be easily adapted to the required locking force.

[0006] According to the invention, this objective is achieved by having a pair of ramps facing away from each other, the two ramps of a locking cam having different inclination angles, and one ramp being opposite to the locking element when the accessory is operated to the closed position, and the other ramp being opposite to the locking element when the accessory is operated to the parked position.

[0007] This design allows for adaptation to the desired locking mechanism by selecting the arrangement of the ramp relative to the locking element. Furthermore, by appropriately selecting the ramp design, it can be ensured that during a single movement of the window sash, the locking element moves on the locking cam on a ramp that is flatter than in the opposite direction. Due to this invention, the additional use of bypass elements is avoided. Therefore, the structure of the fitting is particularly simple.

[0008] According to another advantageous improvement of the invention, when the locking cam has four ramps with different inclinations, the fitting can be used in a variety of applications, wherein, in each case, the flat ramps and steep ramps are opposite to each other. With this design, one ramp pair or another ramp pair can be selectively arranged in the movement of the locking element by proper orientation of the locking cam.

[0009] The locking cam can have a central locking screw, and when the locking screw is loosened, it can be fitted into different orientations of the ramp relative to the locking element. However, this requires the high structural cost of using a locking screw. According to another advantageous improvement of the invention, if the locking cam is held in the track by force locking and has a groove on the side facing away from the track for an adjustment tool, the ramp can be easily fitted into the desired orientation relative to the locking element. This avoids the use of a separate locking screw. However, the intended use of the corresponding ramp pair can be easily set using an adjustment tool.

[0010] According to another advantageous improvement of the invention, if the pulley is arranged between the locking cam and the track, the friction provided during the adjustment of the locking cam can be easily set.

[0011] According to another advantageous improvement of the invention, if the inlet of the ramp is arranged at a different height relative to the locking element, it helps to further increase the range of use of the accessory.

[0012] According to another advantageous improvement of the invention, if the resilient locking element is connected to the slider coupled to the control linkage, and if the slider is guided in a displaceable but non-rotatable manner in the track, various relative movements of the locking element relative to the cam can be generated particularly easily during the opening of the window sash.

[0013] According to another advantageous improvement of the invention, the fitting is particularly simple in structure if the locking element is arranged at one end of the leaf spring and if the other end is fastened to the slider in a form-locking manner.

[0014] According to another advantageous improvement of the invention, if the leaf spring has a curved portion that is fastened into the groove of the slider, the connection between the locking element and the slider shape-locking is particularly simple.

[0015] To further simplify the structure of the fitting, according to another advantageous improvement of the invention, if the locking element is configured as a recessed portion of a leaf spring, it helps to further simplify the structure of the fitting.

[0016] To further simplify the structure of the fitting, according to another advantageous improvement of the invention, if the groove forms a sliding ramp facing the slide and its free end protrudes beyond the locking cam, it helps to further simplify the structure of the fitting.

[0017] According to another advantageous improvement of the invention, if the leaf spring is arranged parallel above the track and has a groove at a predetermined stopping position of the window sash, and if the groove is arranged above the groove of the locking cam for the adjusting tool, the locking cam can be easily adjusted.

[0018] This invention allows for many implementations. One such implementation is shown in the accompanying drawings to further illustrate its basic principles, and will be described below. In the drawings: Figure 1 A portion of a sliding / tilting window with accessories is shown; Figure 2 The parking position is shown. Figure 1 Enlarged view of a portion of the accessories; Figure 3 The closed position is shown. Figure 2 Accessories; Figure 4 Shown at a greatly enlarged scale Figure 2 The accessory is a locking cam.

[0019] Figure 1 The upper region of a sliding / tilting window is schematically shown, featuring a window sash 2 that holds the frame 1 and fittings 3. For simplicity, only the upper vertical beams of the frame 1 and window sash 2 are indicated by dashed lines. The window sash 2 is held from the frame 1 in both a tilted and a sliding position. In the tilted position, the window sash 2 is tilted relative to the frame 1 about a lower horizontal axis; in the sliding position, the window sash 2 can be displaced relative to the frame 1. Fittings 3 have movable tracks 4 on the frame 1 for connecting two unfolding shears 5, 6. Suspension rivets 7, 8 for securing the window sash 2 are located at the free ends of the unfolding shears 5, 6.

[0020] Figure 2 The enlarged diagram shows Figure 1 An enlarged view of an unfolding shear 5 of component 3. The unfolding shear 5 has a retaining arm 9 with a suspension rivet 7 and a control link 10 pivotally supported on the retaining arm 9. The other end of the control link 10 is supported in a slider 11 that is displaceably guided on a track 4. A locking device 12 is provided on the track 4 and the slider 11. The locking device 12 has a locking element 14 displaceable on a slide rail 13 and a locking cam 15 fastened to the slide rail 13, which has a pair of ramps 16, 17 that are far apart from each other.

[0021] The locking element 14 is configured as a recessed portion at one end of the leaf spring 18, and has a sliding ramp 19 at its free end. The other end of the leaf spring 18 is fastened to the groove 21 of the slider 11 in a form-locking manner via a bend 20. The leaf spring 18 extends parallel to the track 4. Furthermore, the leaf spring 18 has a groove 22 directly above the locking cam 15. In the shown parking position, this groove 22 is located... Figure 4 Above the groove 23 in the locking cam 15 for adjusting the tool.

[0022] exist Figure 2 The parking locations shown are as follows: Figure 1 The window sash 2 shown is away from the frame 1, and the locking element 14 is located on one side of the locking cam 15. This parking position can be a tilted position or a sliding position. When the window sash 2 moves to the closed position against the frame 1, the slider 11 with the locking element 14 moves on the locking cam 15 until the control linkage 10 is on the track 4, as shown. Figure 3 As shown. In Figure 3 As shown, the free end of the leaf spring 18 of the locking element 14 with the sliding ramp 19 is opposite to the locking cam 15. The sliding ramp 19 protrudes beyond the locking cam 15, so that when the window sash 2 is stopped again, the locking element 14 moves back beyond the locking cam 15.

[0023] Figure 4 A greatly magnified perspective view shows the locking cam 15 and the pulley 24 disposed between the locking cam 15 and the track 4. The locking cam 15 has a rivet pin 25 by which it is pressed into the track 4. A groove 23 for adjusting a tool (not shown) is located at the center of the rivet pin 25. Figure 4 The locking cam 15 is also shown to have four ramps 16, 17; 26, 27, each equipped with a different tilt angle. At least one ramp 16 is positioned above a shoulder 28. The shoulder 28 causes the entrances of ramps 16, 17; 26, 27 to have different heights relative to the locking element 14. Entry is achieved by the corresponding rotation of the locking cam 15, which has pairs of opposite ramps 16, 17; 26, 27. Figure 2 The slide rail 13 can be configured to provide locking force during the opening and closing of the window.

Claims

1. An accessory (3) for a sliding / tilting window or door, for moving a window sash (2) relative to a frame (1) between a closed position and a parked position, having a control link (10) pivotable and displaceable relative to a track (4), having a locking device (12) operable during relative movement of the track (4) relative to the control link (10), having a locking element (14) of the locking device (12) resiliently biased on a slide rail (13), and a locking cam (15) disposed in the slide rail (13), characterized in that, The locking cam (15) has a pair of ramps (16, 17; 26, 27) facing away from each other. The two ramps (16, 17; 26, 27) of the locking cam (15) have different tilt angles. When the accessory is operated to the closed position, one of the ramps (16, 17; 26, 27) is opposite to the locking element (14), and when the accessory (3) is operated to the parked position, the other ramp (16, 17; 26, 27) is opposite to the locking element (14).

2. The accessory according to claim 1, characterized in that, The locking cam (15) has four ramps (16, 17; 26, 27) with different inclinations, wherein, in each case, the flat ramps (16, 17; 26, 27) and the steep ramps (16, 17; 26, 27) are opposite to each other.

3. The accessory according to claim 1 or 2, characterized in that, The locking cam (14) is held in the track (4) by force locking and has a groove (23) for adjusting the tool on the side opposite to the track (4).

4. The accessory according to at least one of claims 1 to 3, characterized in that, The pulley (24) is arranged between the locking cam (15) and the track (4).

5. The accessory according to at least one of claims 1 to 4, characterized in that, The entrances of the ramps (16, 17; 26, 27) are arranged at different heights relative to the locking element (14).

6. The accessory according to at least one of claims 1 to 5, characterized in that, A resilient locking element (14) is connected to a slider (11) coupled to the control link (10), and the slider (11) is guided in the track (4) in a displaceable but non-rotatable manner.

7. The accessory according to at least one of claims 1 to 6, characterized in that, The locking element (14) is arranged at one end of the leaf spring (18), and the other end is fastened to the slider (11) in a form-locking manner.

8. The accessory according to claim 7, characterized in that, The leaf spring (18) has a bend (20) that is fastened to the groove (21) of the slider (11).

9. The accessory according to claim 7 or 8, characterized in that, The locking element (14) is configured as a recess of the leaf spring (18).

10. The accessory according to claim 9, characterized in that, The groove portion forms a sliding ramp (19) facing the slide (13), and its free end protrudes beyond the locking cam (15).

11. The accessory according to at least one of claims 3 to 10, characterized in that, The leaf spring (18) is arranged parallel above the track (4) and has a groove (22), and at the predetermined stopping position of the window sash (2), the groove (22) is arranged above the groove (23) of the locking cam (15) for the adjustment tool.

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